//=================================================
// File Name       :    CallableStatement_demo
//------------------------------------------------------------------------------
// Author          :    Commonimport java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.sql.*;
import java.text.SimpleDateFormat;
import java.util.Scanner;//主类
//Function        :     CallableStatement_demo
public class CallableStatement_demo {//定义MySQL的数据库驱动程序public static final String DBDRIVER = "org.gjt.mm.mysql.Driver";//定义MySQL数据库的连接地址public static final String DBURL = "jdbc:mysql://localhost:3306/mysql_demo";//MySQL数据库的连接用户名public static final String DBUSER = "root";//MySQL数据库的连接密码public static final String DBPASS = "123456";public static void main(String[] args) throws Exception{// TODO 自动生成的方法存根Connection conn = null;                     //数据库连接CallableStatement cstmt = null;     //数据库操作String sql = "{CALL myproc(?,?,?)}";  //调用过程Class.forName(DBDRIVER);          //加载驱动程序//连接MySQL数据库时，要写上连接的用户名和密码conn = DriverManager.getConnection(DBURL,DBUSER,DBPASS);cstmt = conn.prepareCall(sql);       //实例化PreparedStatementcstmt.setInt(1, 70);              //设置第一个参数是70cstmt.setInt(2, 80);                //设置第二个参数是70cstmt.registerOutParameter(2,Types.INTEGER);    //设置返回值类型cstmt.registerOutParameter(3,Types.INTEGER);cstmt.execute();System.out.println("INOUT的返回值："+cstmt.getInt(2));System.out.println("OUT的返回值："+cstmt.getInt(3));cstmt.close();conn.close();}}